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Sustainable Soil Amendment: Effect of Reusing Saturated Dolomitic Calcareous Amendment (DCAS) on Chemical Properties of Two Types of Agricultural Soils

Author

Listed:
  • Lisa Eliana Samudio Legal

    (Facultad de Ingeniería Agronómica, Universidad Nacional del Este, Minga Guazú 101120, Paraguay)

  • Simeón Aguayo Trinidad

    (Facultad de Ingeniería Agronómica, Universidad Nacional del Este, Minga Guazú 101120, Paraguay)

  • Pedro Gabriel Gamarra Alfonso

    (Facultad de Ingeniería Agronómica, Universidad Nacional del Este, Minga Guazú 101120, Paraguay)

  • María Natalia Piol

    (Departamento de Química, Instituto de Química Aplicada a la Ingeniería, Grupo Interdisciplinario de Quimiodinámica, Facultad de Ingeniería, Universidad de Buenos Aires, Cdad. Autónoma de Buenos Aires C1063, Argentina)

  • Andrea Beatriz Saralegui

    (Departamento de Química, Instituto de Química Aplicada a la Ingeniería, Grupo Interdisciplinario de Quimiodinámica, Facultad de Ingeniería, Universidad de Buenos Aires, Cdad. Autónoma de Buenos Aires C1063, Argentina)

  • Jiam Pires Frigo

    (Instituto Latino-Americano de Tecnologia, Infraestrutura e Território, Universidade Federal da Integração Latino-Americana, Foz do Iguaçu 85870-650, Brazil)

  • Andréia Cristina Furtado

    (Instituto Latino-Americano de Tecnologia, Infraestrutura e Território, Universidade Federal da Integração Latino-Americana, Foz do Iguaçu 85870-650, Brazil)

Abstract

Replacing the linear process based on production, consumption, and disposal gives rise to the circular economy, in which materials are reincorporated into a new production process to create new amendments, following the model of sustainable agriculture. Through the circular economy approach, the aim is to add value to the waste generated during the adsorption process by recovering and reusing it as sustainable soil amendments. The present study analyzes the effects of saturated dolomitic calcareous amendment (DCAS) on the chemical properties of sandy-textured and clayey-textured agricultural soils. For this purpose, the dolomitic calcareous amendment, saturated with nutrients from hydroponic effluent through an adsorption process, was reused, and its effects on the chemical properties of agricultural soils were evaluated during incubation periods of 30, 60, and 90 days and compared with other amendments. A completely randomized experimental design was used, applying 4 treatments with 5 replications, totaling 20 experimental units for each soil type (sandy and clayey): T1 (control), T2 (dolomitic calcareous amendment in natura—DCAN), T3 (saturated dolomitic calcareous amendment—DCAS), and T4 (granulated dolomitic calcareous amendment—DCAG). The chemical properties evaluated were: pH in water, exchangeable aluminum, exchangeable calcium and magnesium, and available phosphorus. An interaction test between treatments and incubation periods was performed for each soil type and analyzed through analysis of variance, with means compared using Tukey’s test ( p < 0.05) in InfoStat software, version 2020I. Through statistical analysis, it was confirmed that there was both interaction and a time effect for the variables pH, exchangeable aluminum, and available phosphorus in both sandy and clayey soils. Furthermore, the results showed that the saturated dolomitic calcareous amendment—DCAS (T3)—had good compatibility with both soil types, highlighting its ability to improve soil chemical properties by increasing pH, and available phosphorus levels, as well as completely reducing exchangeable aluminum concentration. This indicates that the saturated dolomitic calcareous amendment (DCAS) derived from the adsorption of nutrients from hydroponic effluent, can be effectively used to amend soil chemical properties, thereby promoting more efficient and environmentally sustainable agriculture.

Suggested Citation

  • Lisa Eliana Samudio Legal & Simeón Aguayo Trinidad & Pedro Gabriel Gamarra Alfonso & María Natalia Piol & Andrea Beatriz Saralegui & Jiam Pires Frigo & Andréia Cristina Furtado, 2025. "Sustainable Soil Amendment: Effect of Reusing Saturated Dolomitic Calcareous Amendment (DCAS) on Chemical Properties of Two Types of Agricultural Soils," Sustainability, MDPI, vol. 17(19), pages 1-17, September.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:19:p:8557-:d:1756957
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    References listed on IDEAS

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    1. Simon Kizito & Hongzhen Luo & Jiaxin Lu & Hamidou Bah & Renjie Dong & Shubiao Wu, 2019. "Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand," Sustainability, MDPI, vol. 11(11), pages 1-22, June.
    2. Massimiliano Borrello & Francesco Caracciolo & Alessia Lombardi & Stefano Pascucci & Luigi Cembalo, 2017. "Consumers’ Perspective on Circular Economy Strategy for Reducing Food Waste," Sustainability, MDPI, vol. 9(1), pages 1-18, January.
    3. Lisa Eliana Samudio Legal & Simeón Aguayo Trinidad & María Natalia Piol & Pedro Gabriel Gamarra Alfonso & Jiam Pires Frigo & Andréia Cristina Furtado, 2025. "Recovery and Reuse of Nutrients from Hydroponic Effluent in the Context of Circular Agriculture," Sustainability, MDPI, vol. 17(13), pages 1-13, July.
    4. Oumaima Mabrouk & Helmi Hamdi & Sami Sayadi & Mohammad A. Al-Ghouti & Mohammed H. Abu-Dieyeh & Nabil Zouari, 2023. "Reuse of Sludge as Organic Soil Amendment: Insights into the Current Situation and Potential Challenges," Sustainability, MDPI, vol. 15(8), pages 1-25, April.
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